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Solution


Q.

Which one of the following is wrong about Chara                   [2014]
1 Upper oogonium and lower round antheridium  
2 Globule and nucule present on the same plant  
3 Upper antheridium and lower oogonium  
4 Globule is male reproductive structure  

Ans.

(3)

All species of Chara reproduce sexually and show highly advanced oogamy. The sex organs are the most distinctive features of the Order Charales and are the most complicated among the thallophytes. Male and female gametangia are called antheridia and oogonia, respectively. Male fructification (cluster of antheridia) is called globule, and the female is nucule. They are borne at the nodes of short branches, globule towards the lower side and nucule (female structure) towards the upper side.